Home / 151,989.45-209,763.23-126,450.76

Finding the Fourth Proportional to 151,989.45, 209,763.23 and 126,450.76

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Solution

The fourth proportional to 151,989.45, 209,763.23 and 126,450.76 is: 174,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,989.45 : 209,763.23 = 126,450.76 : x
  2. Step 2: Convert to fraction form
    151,989.45/209,763.23 = 126,450.76/x
  3. Step 3: Cross multiply
    151,989.45x = 209,763.23 × 126,450.76
  4. Step 4: Simplify right side
    151,989.45x = 26,524,719,853.55
  5. Step 5: Solve for x
    x = 26,524,719,853.55/151,989.45
  6. Step 6: Final answer
    x = 174,516.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.